Amazon Prime Exclusive Phones is a pretty interesting proposition, giving consumers the option to get a new smartphone at a lower price in exchange for ads and offers. The number of supported devices is not that high though, but Amazon is constantly adding more and more to the list.

And today it is the LG G6 and G6+ flagships as well as the Q6 and X charge that join the program. All are available through Amazon Prime Exclusive Phones in their unlocked version, so that they can be used on different carriers.

"We're excited to welcome LG as a new manufacturer to the Prime Exclusive Phones program," says Adrian Hurditch, director of Product Management at Amazon. "With the additions of the LG G6, LG G6+, LG Q6 and LG X charge to the portfolio, Prime members now have access to a wider variety of the latest unlocked smartphones, including those with premium hardware and high-end features, all at an incredible value."

The G6+ is the most expensive smartphone offered through Amazon Prime Exclusive Phones, being listed at $499.99. Normally, Amazon sells it for $695.16. That is nearly $200 off the standard price, though you might also want to check out the G6 too before pulling the trigger.

The G6 is priced at a more reasonable $399.99, which is $50 less than the $449.99 asking price for the model sold outside of Amazon Prime Exclusive Phones. The discount is not as significant, but it is pretty close to the G6+ in terms of specs and features.

The Q6 and X charge are offered as budget options. The Q6 is available for $229.99 (down from $299.99), whereas the X charge can be had for $149.99 (down from $199.99). Of the two, the Q6 is a much more attractive option, featuring a higher-resolution screen and better internals.